A fun little 4th level necromancer spell for your entertainment...
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Detach / Graft
Duration: See below
Casting this spell and touching a body part causes it to detach from its owner, who can then control the part as an independent entity. Thus hands may crawl around, legs may hop, and even heads can be detached and rolled. The detached body part can be controlled for up to 1 turn per level of the caster, after which it must be retrieved and reattached to the body (which happens automatically). If the body part is not reattached during the spell's duration it dies.
Using the reverse version, graft, body parts lost in any way may be replaced either by reattaching the missing part or by grafting on replacement parts cut from another living or recently dead creature. The graft is permanent, but the recipient (which may be the caster himself) must make a transformative shock roll. If the roll fails the graft does not take, and will wither and fall off in 1d6 weeks.